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一、智能調節防爆閥門電動執行裝置概述

智能防爆電動執行器Q90防爆型防護(hu)等X為(wei)IP67。適(shi)用(yong)(yong)(yong)于(yu)(yu)易燃(ran)易爆的(de)場合,安(an)全系數高、操作功能強、性能穩定等。防爆型產品有dI和dIIBT4兩種，dI適(shi)用(yong)(yong)(yong)于(yu)(yu)煤(mei)礦(kuang)非采掘工作面；dIIBT4用(yong)(yong)(yong)于(yu)(yu)工廠，適(shi)用(yong)(yong)(yong)于(yu)(yu)環境為(wei)IIA、IIBXT1～T4組的(de)爆炸性氣(qi)體混合物。

智能防(fang)(fang)爆電(dian)(dian)(dian)動執行器Q90的(de)性(xing)能符合(he)JB/T8528-1997<普通(tong)(tong)型(xing)(xing)閥門電(dian)(dian)(dian)動裝置(zhi)技術條件>的(de)規定。防(fang)(fang)爆型(xing)(xing)的(de)性(xing)能符合(he)GB3836.1-2000<爆炸性(xing)環境用防(fang)(fang)爆電(dian)(dian)(dian)氣設備通(tong)(tong)用要求>及JB/T8529-1997<隔爆型(xing)(xing)閥門電(dian)(dian)(dian)動裝置(zhi)技術條件>的(de)規定。并經X防(fang)(fang)爆電(dian)(dian)(dian)氣產品測(ce)試中心檢定，取得了防(fang)(fang)爆合(he)格證。

智能防爆電動(dong)(dong)(dong)執行器(qi)Q90工(gong)(gong)作原理為：由減速箱內的一對大(da)小傘齒輪帶動(dong)(dong)(dong)主動(dong)(dong)(dong)小齒輪（Z=8），再帶動(dong)(dong)(dong)計(ji)數(shu)器(qi)工(gong)(gong)作。如果計(ji)數(shu)器(qi)按閥門開、關的位置(zhi)已調好，當計(ji)數(shu)器(qi)隨輸出軸轉(zhuan)動(dong)(dong)(dong)到預先調整好的位置(zhi)（圈數(shu)）時，則凸輪將轉(zhuan)動(dong)(dong)(dong)90°，迫使微動(dong)(dong)(dong)開關動(dong)(dong)(dong)作，切斷電機電源(yuan)，使電機停轉(zhuan)，從(cong)而實(shi)現(xian)對電動(dong)(dong)(dong)裝置(zhi)行程（轉(zhuan)圈 數(shu)）的控制。

 二、智能調節防爆閥門電動執行裝置安裝方法及注意事項

本裝置(zhi)可(ke)可(ke)垂直，水(shui)平(ping)安(an)裝，但電(dian)機不(bu)可(ke)向下，應便于接(jie)線，調(diao)試和手動(dong)(dong)操作(zuo)。同(tong)一只微動(dong)(dong)開關的(de)常開和常閉觸點(dian)上不(bu)允許施加不(bu)同(tong)的(de)電(dian)源(yuan)。安(an)裝與(yu)閥門連接(jie)的(de)牙(ya)嵌軸向間隙不(bu)小于1-2mm。通電(dian)前檢(jian)查(cha)接(jie)地是否可(ke)靠。新裝的(de)電(dian)動(dong)(dong)裝置(zhi)X次電(dian)動(dong)(dong)時，必須檢(jian)查(cha)電(dian)機相序，控制線路是否正確，以防(fang)電(dian)機失控。